Worksheet Overview

QUESTION 1 of 10

Letter detective, we need your help! In this activity, we will be using the alphabet to help us crack a letter code!

There are many different types of sequences. In letter pair sequences there are pairs of letters joined together by a common theme, normally the amount of space between them. Some follow a forwards sequence, while others follow a reverse alphabet sequence.

Here is the alphabet for you to use as a reference:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Look at the following letter sequence:

US is to QO as MK is to ___?

First, we have to work out how the first letter of the first pair (US) gets to the first letter of the second pair (QO).

To get from U to Q, we jump 4 places to the left.

Then we have to work out how the second letter of the first pair gets to the second letter of the second pair.

To get from S to O we also jump 4 places to the left.

This means we need to do the same to the letters M and K to work out the missing letters in our sequence.

This makes our missing letters IG.

So the answer is:

US is to QO as MK is to IG.

Let’s try another:

TR is to SU as BL is to ___?

To get from the first letter of the first pair to the first letter of the second pair, we jump 1 place to the left.

To get from the second letter of the first pair to the second letter of the second pair, we jump 3 places to the right.

This means we need to jump one place to the left from the letter B, giving us A and then three places to the right from L, giving us I.

So the correct answer is:

TR is to SU as BL is to AI.

In this activity, you will need to be a sequence superstar and complete the letter pairs.

Pssstt!! Here’s a handy hint to help you reach superstar status:

Remember to use the alphabet line to help you work out the code.

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

CH is to DL as LT is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

JM is to RW as CE is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

PK is to AT as JY is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BU is to AZ as DL is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

RL is to DV as QO is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BG is to QF as ZP is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

HV is to GD as UW is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

SQ is to RP as JB is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

TU is to FY as IA is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BY is to PD as ZW is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ANSWERS

Question 1

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

CH is to DL as LT is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

MX

EDDIE SAYS

Thanks for joining this sequence solving mission! There are two different sequences to look for each time.
The first letter in each pair has a sequence of one jump forwards in the alphabet. The second letter has a sequence of four jumps forwards.
Top tip: Work out and solve the sequence for the first letter in your answer, then do the same for the second letter.

ANSWERS

Question 2

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

JM is to RW as CE is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

KO

EDDIE SAYS

How did you get on? The first letter in each pair has a sequence of eight jumps forwards in the alphabet. The second letter has a sequence of ten jumps forwards.

ANSWERS

Question 3

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

PK is to AT as JY is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

UH

EDDIE SAYS

What a lot of letters!
The first letter in each pair has a sequence of eleven jump forwards in the alphabet. The second letter has a sequence of nine jumps forwards.

ANSWERS

Question 4

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BU is to AZ as DL is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

CQ

EDDIE SAYS

The first letter in each pair has a sequence of one jump backwards in the alphabet. The second letter has a sequence of five jumps forwards. Remember to count this out loud carefully. You may even want to write this down as you go?

ANSWERS

Question 5

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

RL is to DV as QO is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

CY

EDDIE SAYS

The first letter in each pair has a sequence of twelve jumps forwards in the alphabet. The second letter has a sequence of ten jumps forwards.
You're now halfway through your mission, sequence spotter!

ANSWERS

Question 6

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BG is to QF as ZP is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

OO

EDDIE SAYS

Did you work this one out?
The first letter in each pair has a sequence of fifteen jumps forwards in the alphabet. The second letter has a sequence of one jump backwards in the alphabet.

ANSWERS

Question 7

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

HV is to GD as UW is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

TE

EDDIE SAYS

Top letter locating! The first letter in each pair has a sequence of one jump backwards in the alphabet. The second letter has a sequence of eight jumps forwards.

ANSWERS

Question 8

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

SQ is to RP as JB is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

IA

EDDIE SAYS

Super sequencing effort!
The first letter in each pair has a sequence of one jump backwards in the alphabet. The second letter also has a sequence of one jump backwards.

ANSWERS

Question 9

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

TU is to FY as IA is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

UE

EDDIE SAYS

The first letter in each pair has a sequence of twelve jumps forwards in the alphabet. The second letter has a sequence of four jumps forwards.
One question left, let's take a peek!

ANSWERS

Question 10

Here are two groups of letter pairs. Each group follows the same special sequence, but with different letters.

BY is to PD as ZW is to ______ ?

Use your detective skills to work out the special sequence and find the missing letter pair.

You may use the alphabet chart below to help you:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

CORRECT ANSWER

NB

EDDIE SAYS

The first letter in each pair has a sequence of fourteen jump forwards in the alphabet. The second letter has a sequence of five jumps forwards.
What a treat, this activity is now complete!

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